Hmm. Not sure how you order things. It's not exactly straightforward. Most of these are interconnected via paths or holes or cliff jumps or rock climbs.
Dugout is the entry from Antonica.
The Tradeskill instance entrance is in Dugout.
From Dugout, for the adventure instances (Entrance Level) is where you come in. I guess I would say
- Entrance
- Lower
- Upper North
- Upper South
- UnderPaw and Ancestral
- Terraports